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Question

An apple tree is taller than a lemon tree. A papaya tree is shorter than a palm tree. A mango tree is shorter than the papaya tree but taller than the apple tree. Which is the tallest tree?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
Palm tree

Ordering Trees by Height

We need to determine the height order of the trees based on the given statements.

  • Statement 1: Apple tree > Lemon tree
  • Statement 2: Papaya tree < Palm tree (or Palm tree > Papaya tree)
  • Statement 3: Mango tree < Papaya tree (or Papaya tree > Mango tree)
  • Statement 4: Mango tree > Apple tree

Combining Height Comparisons

Let's combine the inequalities:

  • From (1) and (4): Mango tree > Apple tree > Lemon tree
  • From (3): Papaya tree > Mango tree
  • Combining these: Papaya tree > Mango tree > Apple tree > Lemon tree
  • From (2): Palm tree > Papaya tree
  • Combining all: Palm tree > Papaya tree > Mango tree > Apple tree > Lemon tree

Identifying the Tallest Tree

Based on the combined order, the Palm tree is taller than all the other trees mentioned.

Therefore, the tallest tree is the Palm tree.

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Important Questions from Ordering and Ranking

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  2. In a class of 60 students, where the number of girls is twice that of boys, Kamal, a boy, ranked seventeenth from the top. If there are 9 girls ahead of Kamal, the number of boys in rank after him is:

  3. Examine the information given in the following paragraph and answer the items that follow: Guest lectures on five subjects viz., Economics, History, Statistics, English and Mathematics have to be arranged in a week from Monday to Friday. Only one lecture can be arranged on each day. Economics cannot be scheduled on Tuesday. Guest faculty for History is available only on Tuesday. Mathematics lecture has to be scheduled immediately after the day of Economics lecture. English lecture has to be scheduled immediately before the day of Economics lecture. Which lecture is scheduled on Monday?

  4. Examine the information given in the following paragraph and answer the items that follow: Guest lectures on five subjects viz., Economics, History, Statistics, English and Mathematics have to be arranged in a week from Monday to Friday. Only one lecture can be arranged on each day. Economics cannot be scheduled on Tuesday. Guest faculty for History is available only on Tuesday. Mathematics lecture has to be scheduled immediately after the day of Economics lecture. English lecture has to be scheduled immediately before the day of Economics lecture. Which lecture is scheduled between Statistics and English?

  5. Examine the information given in the following paragraph and answer the items that follow: Guest lectures on five subjects viz., Economics, History, Statistics, English and Mathematics have to be arranged in a week from Monday to Friday. Only one lecture can be arranged on each day. Economics cannot be scheduled on Tuesday. Guest faculty for History is available only on Tuesday. Mathematics lecture has to be scheduled immediately after the day of Economics lecture. English lecture has to be scheduled immediately before the day of Economics lecture. Which lecture is the last one in the week?

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